Photochemical cyclization of some aldehyde thiosemicarbazones
Autor: | Giuseppe Werber, Michelangelo Gruttadauria, Silvestre Buscemi, Giuseppe Cusmano, Renato Noto, Francesco Buccheri |
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Rok vydání: | 1992 |
Předmět: | |
Zdroj: | Journal of Heterocyclic Chemistry. 29:233-236 |
ISSN: | 1943-5193 0022-152X |
DOI: | 10.1002/jhet.5570290142 |
Popis: | The photochemical behaviour of some substituted aldehyde thiosemicarbazones 1a-k has been investigated in methanol at 254 nm. Thiosemicarbazones of glyoxil methyl ester 1a-f cyclized to furnish the 3-thioxo- 1,2,4-triazin-5-one 2 ring system. The remaining thiosemicarbazones 1g-j gave 1,2,4-triazoline 4 derivatives. |
Databáze: | OpenAIRE |
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